Overview

overview

10

Static

static

PL_017_603_789.xlsx

windows7_x64

10

PL_017_603_789.xlsx

windows10_x64

1

Sharing

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General

  • Target

    PL_017_603_789.xlsx

  • Size

    8KB

  • Sample

    210503-rgsfvm1176

  • MD5

    1a03e1c83f77a1530ab877f49eb5d847

  • SHA1

    c6b5ccdfbce66dacdaa5873cc3193cb0f5417ffb

  • SHA256

    252db8ee3c10aeb1589590a3866ed4ef1e4824656916c1c1b2ae3f2f6b51ab80

  • SHA512

    8bbb30f47225ca8580386edbeafc9783692bdbc10ffc71dbd653a8f8a82831edfa83169619d47c5061b52c1341ea77ae049cd64bacaa597adc45ea933f7ca471

Score
10/10
oskidiscoveryinfostealerspywarestealer

Malware Config

Extracted

Family

oski

C2

205.185.120.57

Targets

    • Target

      PL_017_603_789.xlsx

    • Size

      8KB

    • MD5

      1a03e1c83f77a1530ab877f49eb5d847

    • SHA1

      c6b5ccdfbce66dacdaa5873cc3193cb0f5417ffb

    • SHA256

      252db8ee3c10aeb1589590a3866ed4ef1e4824656916c1c1b2ae3f2f6b51ab80

    • SHA512

      8bbb30f47225ca8580386edbeafc9783692bdbc10ffc71dbd653a8f8a82831edfa83169619d47c5061b52c1341ea77ae049cd64bacaa597adc45ea933f7ca471

    Score
    10/10
    oskidiscoveryinfostealerspywarestealer

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1
T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks